code: def __get_train_loss_function(dataset):
      return {"adult": "Logloss", "covertype": "MultiClass"}.get(
          dataset, "RMSE"
      )
  
file_path: catboost/catboost/libs/model/model_export/ut/test.py
imports: import numpy
  import os
  import pytest
  import re
  import yatest
  from catboost import Pool, CatBoost, CatBoostClassifier
  from catboost_pytest_lib import data_file, load_pool_features_as_df
label_desc: Use image node_id 3 for calling a global function with example usage: __get_train_loss_function(dataset) and returns: dict